upgrade RN 0.7x for example

Author: baronha

example/.bundle/config

@@ -0,0 +1,2 @@
+BUNDLE_PATH: "vendor/bundle"
+BUNDLE_FORCE_RUBY_PLATFORM: 1

example/.node-version

@@ -0,0 +1 @@
+18

example/Gemfile

@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+# You may use http://rbenv.org/ or https://rvm.io/ to install and use this version
+ruby '>= 2.6.10'
+gem 'cocoapods', '>= 1.11.3'

example/android/app/build.gradle

@@ -3,129 +3,67 @@ apply plugin: "com.android.application"
 import com.android.build.OutputFile
 
 /**
- * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
- * and bundleReleaseJsAndAssets).
- * These basically call `react-native bundle` with the correct arguments during the Android build
- * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the
- * bundle directly from the development server. Below you can see all the possible configurations
- * and their defaults. If you decide to add a configuration block, make sure to add it before the
- * `apply from: "../../node_modules/react-native/react.gradle"` line.
- *
- * project.ext.react = [
- *   // the name of the generated asset file containing your JS bundle
- *   bundleAssetName: "index.android.bundle",
- *
- *   // the entry file for bundle generation
- *   entryFile: "index.android.js",
- *
- *   // https://reactnative.dev/docs/performance#enable-the-ram-format
- *   bundleCommand: "ram-bundle",
- *
- *   // whether to bundle JS and assets in debug mode
- *   bundleInDebug: false,
- *
- *   // whether to bundle JS and assets in release mode
- *   bundleInRelease: true,
- *
- *   // whether to bundle JS and assets in another build variant (if configured).
- *   // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants
- *   // The configuration property can be in the following formats
- *   //         'bundleIn${productFlavor}${buildType}'
- *   //         'bundleIn${buildType}'
- *   // bundleInFreeDebug: true,
- *   // bundleInPaidRelease: true,
- *   // bundleInBeta: true,
- *
- *   // whether to disable dev mode in custom build variants (by default only disabled in release)
- *   // for MultipleImagePickerExample: to disable dev mode in the staging build type (if configured)
- *   devDisabledInStaging: true,
- *   // The configuration property can be in the following formats
- *   //         'devDisabledIn${productFlavor}${buildType}'
- *   //         'devDisabledIn${buildType}'
- *
- *   // the root of your project, i.e. where "package.json" lives
- *   root: "../../",
- *
- *   // where to put the JS bundle asset in debug mode
- *   jsBundleDirDebug: "$buildDir/intermediates/assets/debug",
- *
- *   // where to put the JS bundle asset in release mode
- *   jsBundleDirRelease: "$buildDir/intermediates/assets/release",
- *
- *   // where to put drawable resources / React Native assets, e.g. the ones you use via
- *   // require('./image.png')), in debug mode
- *   resourcesDirDebug: "$buildDir/intermediates/res/merged/debug",
- *
- *   // where to put drawable resources / React Native assets, e.g. the ones you use via
- *   // require('./image.png')), in release mode
- *   resourcesDirRelease: "$buildDir/intermediates/res/merged/release",
- *
- *   // by default the gradle tasks are skipped if none of the JS files or assets change; this means
- *   // that we don't look at files in android/ or ios/ to determine whether the tasks are up to
- *   // date; if you have any other folders that you want to ignore for performance reasons (gradle
- *   // indexes the entire tree), add them here. Alternatively, if you have JS files in android/
- *   // for MultipleImagePickerExample, you might want to remove it from here.
- *   inputExcludes: ["android/**", "ios/**"],
- *
- *   // override which node gets called and with what additional arguments
- *   nodeExecutableAndArgs: ["node"],
- *
- *   // supply additional arguments to the packager
- *   extraPackagerArgs: []
- * ]
- */
-
-project.ext.react = [
-    enableHermes: false,  // clean and rebuild if changing
-    entryFile: "index.tsx",
-]
-
-apply from: "../../node_modules/react-native/react.gradle"
-
-/**
- * Set this to true to create two separate APKs instead of one:
- *   - An APK that only works on ARM devices
- *   - An APK that only works on x86 devices
- * The advantage is the size of the APK is reduced by about 4MB.
- * Upload all the APKs to the Play Store and people will download
- * the correct one based on the CPU architecture of their device.
- */
-def enableSeparateBuildPerCPUArchitecture = false
 
-/**
- * Run Proguard to shrink the Java bytecode in release builds.
+ * This is the configuration block to customize your React Native Android app.
+ * By default you don't need to apply any configuration, just uncomment the lines you need.
  */
-def enableProguardInReleaseBuilds = false
-
+react {
+    /* Folders */
+    //   The root of your project, i.e. where "package.json" lives. Default is '..'
+    // root = file("../")
+    //   The folder where the react-native NPM package is. Default is ../node_modules/react-native
+    // reactNativeDir = file("../node_modules/react-native")
+    //   The folder where the react-native Codegen package is. Default is ../node_modules/react-native-codegen
+    // codegenDir = file("../node_modules/react-native-codegen")
+    //   The cli.js file which is the React Native CLI entrypoint. Default is ../node_modules/react-native/cli.js
+    // cliFile = file("../node_modules/react-native/cli.js")
+    /* Variants */
+    //   The list of variants to that are debuggable. For those we're going to
+    //   skip the bundling of the JS bundle and the assets. By default is just 'debug'.
+    //   If you add flavors like lite, prod, etc. you'll have to list your debuggableVariants.
+    // debuggableVariants = ["liteDebug", "prodDebug"]
+    /* Bundling */
+    //   A list containing the node command and its flags. Default is just 'node'.
+    // nodeExecutableAndArgs = ["node"]
+    //
+    //   The command to run when bundling. By default is 'bundle'
+    // bundleCommand = "ram-bundle"
+    //
+    //   The path to the CLI configuration file. Default is empty.
+    // bundleConfig = file(../rn-cli.config.js)
+    //
+    //   The name of the generated asset file containing your JS bundle
+    // bundleAssetName = "MyApplication.android.bundle"
+    //
+    //   The entry file for bundle generation. Default is 'index.android.js' or 'index.js'
+    // entryFile = file("../js/MyApplication.android.js")
+    //
+    //   A list of extra flags to pass to the 'bundle' commands.
+    //   See https://github.com/react-native-community/cli/blob/main/docs/commands.md#bundle
+    // extraPackagerArgs = []
+    /* Hermes Commands */
+    //   The hermes compiler command to run. By default it is 'hermesc'
+    // hermesCommand = "$rootDir/my-custom-hermesc/bin/hermesc"
+    //
+    //   The list of flags to pass to the Hermes compiler. By default is "-O", "-output-source-map"
+    // hermesFlags = ["-O", "-output-source-map"]
+}
 /**
- * The preferred build flavor of JavaScriptCore.
- *
- * For MultipleImagePickerExample, to use the international variant, you can use:
- * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
- *
- * The international variant includes ICU i18n library and necessary data
- * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
- * give correct results when using with locales other than en-US.  Note that
- * this variant is about 6MiB larger per architecture than default.
- */
-def jscFlavor = 'org.webkit:android-jsc:+'
+def enableSeparateBuildPerCPUArchitecture = false
 
-/**
- * Whether to enable the Hermes VM.
- *
- * This should be set on project.ext.react and mirrored here.  If it is not set
- * on project.ext.react, JavaScript will not be compiled to Hermes Bytecode
- * and the benefits of using Hermes will therefore be sharply reduced.
+ * Private function to get the list of Native Architectures you want to build.
+ * This reads the value from reactNativeArchitectures in your gradle.properties
+ * file and works together with the --active-arch-only flag of react-native run-android.
  */
-def enableHermes = project.ext.react.get("enableHermes", false);
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
 
 android {
+    ndkVersion rootProject.ext.ndkVersion
     compileSdkVersion rootProject.ext.compileSdkVersion
-
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
+    namespace "com.example.reactnativemultipleimagepicker"
 
     defaultConfig {
         applicationId "com.example.reactnativemultipleimagepicker"
@@ -139,7 +77,7 @@ android {
             reset()
             enable enableSeparateBuildPerCPUArchitecture
             universalApk false  // If true, also generate a universal APK
-            include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
+            include (*reactNativeArchitectures())
         }
     }
     signingConfigs {
@@ -171,37 +109,28 @@ android {
             def abi = output.getFilter(OutputFile.ABI)
             if (abi != null) {  // null for the universal-debug, universal-release variants
                 output.versionCodeOverride =
-                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
+                        defaultConfig.versionCode * 1000 + versionCodes.get(abi)
             }
 
         }
     }
 }
 
 dependencies {
-    implementation fileTree(dir: "libs", include: ["*.jar"])
-    //noinspection GradleDynamicVersion
-    implementation "com.facebook.react:react-native:+"  // From node_modules
-
+    // The version of react-native is set by the React Native Gradle Plugin
+    implementation("com.facebook.react:react-android")
 
-    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
-    debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}") {
-      exclude group:'com.facebook.fbjni'
-    }
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.0.0")
 
+    debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}")
     debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
-        exclude group:'com.facebook.flipper'
         exclude group:'com.squareup.okhttp3', module:'okhttp'
     }
 
-    debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}") {
-        exclude group:'com.facebook.flipper'
-    }
-
-    if (enableHermes) {
-        def hermesPath = "../../node_modules/hermes-engine/android/";
-        debugImplementation files(hermesPath + "hermes-debug.aar")
-        releaseImplementation files(hermesPath + "hermes-release.aar")
+    debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}")
+    
+    if (hermesEnabled.toBoolean()) {
+        implementation("com.facebook.react:hermes-android")
     } else {
         implementation jscFlavor
     }

example/android/app/src/debug/AndroidManifest.xml

@@ -4,5 +4,7 @@
 
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
 
-    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" />
+    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning">
+        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" android:exported="false" />
+    </application>
 </manifest>

example/android/app/src/debug/java/com/example/reactnativemultipleimagepicker/ReactNativeFlipper.java

@@ -17,13 +17,18 @@
 import com.facebook.flipper.plugins.inspector.InspectorFlipperPlugin;
 import com.facebook.flipper.plugins.network.FlipperOkhttpInterceptor;
 import com.facebook.flipper.plugins.network.NetworkFlipperPlugin;
-import com.facebook.flipper.plugins.react.ReactFlipperPlugin;
+import com.facebook.react.ReactInstanceEventListener;
 import com.facebook.flipper.plugins.sharedpreferences.SharedPreferencesFlipperPlugin;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.modules.network.NetworkingModule;
 import okhttp3.OkHttpClient;
 
+/**
+ * Class responsible of loading Flipper inside your React Native application. This is the debug
+ * flavor of it. Here you can add your own plugins and customize the Flipper setup.
+ */
+
 public class ReactNativeFlipper {
   public static void initializeFlipper(Context context, ReactInstanceManager reactInstanceManager) {
     if (FlipperUtils.shouldEnableFlipper(context)) {
@@ -48,7 +53,7 @@ public void apply(OkHttpClient.Builder builder) {
       ReactContext reactContext = reactInstanceManager.getCurrentReactContext();
       if (reactContext == null) {
         reactInstanceManager.addReactInstanceEventListener(
-            new ReactInstanceManager.ReactInstanceEventListener() {
+            new ReactInstanceEventListener() {
               @Override
               public void onReactContextInitialized(ReactContext reactContext) {
                 reactInstanceManager.removeReactInstanceEventListener(this);

example/android/app/src/main/AndroidManifest.xml

@@ -1,25 +1,12 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-  package="com.example.reactnativemultipleimagepicker">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
   <uses-permission android:name="android.permission.INTERNET" />
   <uses-permission android:name="android.permission.CAMERA"/>
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
-  <application
-    android:name=".MainApplication"
-    android:allowBackup="false"
-    android:icon="@mipmap/ic_launcher"
-    android:label="@string/app_name"
-    android:roundIcon="@mipmap/ic_launcher_round"
-    android:theme="@style/AppTheme">
-    <activity
-      android:name=".MainActivity"
-      android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
-      android:label="@string/app_name"
-      android:launchMode="singleTask"
-      android:windowSoftInputMode="adjustResize">
+  <application android:name=".MainApplication" android:allowBackup="false" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:theme="@style/AppTheme">
+    <activity android:name=".MainActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|screenSize|smallestScreenSize|uiMode" android:label="@string/app_name" android:launchMode="singleTask" android:windowSoftInputMode="adjustResize" android:exported="true">
       <intent-filter>
         <action android:name="android.intent.action.MAIN" />
         <category android:name="android.intent.category.LAUNCHER" />

example/android/app/src/main/java/com/example/reactnativemultipleimagepicker/MainActivity.java

@@ -1,6 +1,9 @@
 package com.example.reactnativemultipleimagepicker;
 
 import com.facebook.react.ReactActivity;
+import com.facebook.react.ReactActivityDelegate;
+import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint;
+import com.facebook.react.defaults.DefaultReactActivityDelegate;
 
 public class MainActivity extends ReactActivity {
 
@@ -12,4 +15,21 @@ public class MainActivity extends ReactActivity {
   protected String getMainComponentName() {
     return "MultipleImagePickerExample";
   }
+
+  /**
+   * Returns the instance of the {@link ReactActivityDelegate}. Here we use a util class {@link
+   * DefaultReactActivityDelegate} which allows you to easily enable Fabric and Concurrent React
+   * (aka React 18) with two boolean flags.
+   */
+  @Override
+  protected ReactActivityDelegate createReactActivityDelegate() {
+    return new DefaultReactActivityDelegate(
+        this,
+        getMainComponentName(),
+        // If you opted-in for the New Architecture, we enable the Fabric Renderer.
+        DefaultNewArchitectureEntryPoint.getFabricEnabled(), // fabricEnabled
+        // If you opted-in for the New Architecture, we enable Concurrent React (i.e. React 18).
+        DefaultNewArchitectureEntryPoint.getConcurrentReactEnabled() // concurrentRootEnabled
+      );
+  }
 }